Black seed essential oil is derived from the seeds of the black cumin which is also known by the scientific name Nigella sativa. This plant originally belongs to Southwest Asia and has been known in different names such as black cumin seed oil, nigella sativa oil, or kalonji oil. It has been widely used for cooking and for medical purposes. Black seed is rich in thymoquinone which is a very effective antioxidant compound that allows your body to get rid of the free radicals which can cause different medical problems in your system. The black seed essential oil has been reportedly observed to help those suffering from high blood pressure. It helps to bring the pressure under control and allows the nerves to relax. If you are suffering from cholesterol, then this oil can also help you to keep it within the optimal levels. Other benefits include reducing cramps and helping to recover from asthma.